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H T Ren1, J Zhao1, S X Peng1

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This summary is machine-generated.

Radiation shielding is crucial for ion source design. This study details extraction system designs and measured neutron and gamma-ray doses during deuteron ion source commissioning for the PKUNIFTY project.

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Area of Science:

  • Nuclear Physics
  • Particle Accelerators
  • Radiation Safety

Background:

  • Ion sources generate radiation (X-rays, neutrons, gamma-rays) during operation.
  • Effective radiation shielding is essential for safe design and commissioning.
  • Previous methods addressed X-ray shielding for proton beams, but deuteron beams pose different challenges.

Purpose of the Study:

  • To describe the extraction system design for a deuteron ion source.
  • To measure neutron and gamma-ray radiation doses during deuteron ion source commissioning.
  • To ensure safe operation for the PKUNIFTY project.

Main Methods:

  • Designed an extraction system for a 2.45 GHz deuteron electron cyclotron resonance ion source.
  • Measured X-ray emissions from ceramic components at up to 30 kV.
  • Monitored neutron and gamma-ray doses at various D(+) beam energies.
  • Utilized a metal vacuum box to mitigate X-ray emissions.

Main Results:

  • X-rays were detected around the ceramic column at 30 kV, increasing with beam extraction.
  • Inserting the ceramic column into a metal vacuum box effectively blocked X-ray emission.
  • Online testing of intense H(+) beams up to 100 keV was enabled.
  • Neutron and gamma-ray radiation became significant concerns for deuteron ion source commissioning.

Conclusions:

  • The designed extraction system allows for safe commissioning of deuteron ion sources.
  • Radiation shielding strategies must be adapted for different ion species (H+ vs. D+).
  • Accurate radiation dose measurements are vital for the PKUNIFTY project's safety and success.